For other providers such as PakTel try this site throug which you can send messages to any provider phone service. For example here is the link for Warid.
For Ufone users there’s more. According to Ufone website, “You can send and receive SMS between Ufone & PTCL landline phones. All that’s required by a PTCL subscriber is a CLI activated PTCL number and an SMS enabled telephone set. Outgoing messages are charged at Rs. 1 per SMS.” Can anyon